Apparatus for dyeing, &amp;c.



PATENTED NOV. 8, 1904.

O VENTER.

APPARATUS FOR DYEING,

APPLICATION FILED AUG.17. 1903.

2 SHEETS-SHEBT 1.

N0 MODEL.

1 Inventor fi/fi w W Witnesses.

PATENTED NOV. 8. 1904.

0. VENTER.

APPARATUS FOR DYEING, Sac.

MEFLIGATION FILED AUG: 17, 1903.

2 SHEETS-SHEET 2.

NO MODEL.

I nventor- UNiTED STATES Patented November 8, 1904.

OTTO VENTER, OF OHEMNITZ, GERMANY.

APPARATUS FOR DYEING, 81.0.

SPECIFICATION forming part of Letters Patent No. 774,407, dated November 8, 1904.

Application filed August 17, 1903.

T0 aZZ whom, it may concern:

Be it known that I, Orrro VENTER, a subject of the German Emperor, residing at Chemnitz, Germany, have invented certain new and useful Improvements in Apparatus for Dyeing, Bleaching, or otherwise Treating Materials, of which the following is a specification.

This invention relates to apparatus for dyeing, bleaching, or otherwise treating materials; and its object is to subject such material to a partial sucking or forcing action after the dyeing or bleaching process. In such apparatus, especially when loose material, fabrics, hosiery, and the like are treated, it has been found indispensable to subject the latter to as complete withdrawal of the air as will be possible or to treatment with hot gases or vapor. Such withdrawal of air, however, is impracticable when the whole mass of material is simultaneously subjected to the vacuum available or when the hot gases or vapor are simultaneously forced through the whole mass. For this reason the material in treatment formerly had to be partially or at intervals subjected to the action of the vacuum or hot gases or vapor, so as to enable the latter to solely act upon a proportionally small part of the material. Devices constructed for this purpose heretofore have consisted of a vacuum-chamber adapted to be moved along the wall of the receptacle into which the materialis placed. These chambers are opened at one side, so that when pressed against the wall of the receptacle said wall forms the closure for the vacuum-chamber. hen the air is exhausted from'within the chamber, thecliamber will be pressed against the wall of the receptacle by the exterior atmospheric pressure. However, with this device a greater power is required than with my improved apparatus. Also such a device has a further drawback, that if hot gases or vapor are forced into the chamber the latter will be blown away from the wall of the receptacle. These drawbacks are overcome in the present invention, as the vacuum-chamber is formed as a cylindrical hollow body orpiston and is moved along through a pipe upon which the material is Serial No. 169,760. (No model.)

held, both said piston and pipe being perforated to allow for the suction or for the discharge of the hot gases or vapor.

In the annexed drawings my improved apparatus is represented.

Figure 1 showsit as adapted in use for warp-rollers, the vaccum-chamber arranged as hollow piston thereby being exhausted by means of an air-pump. Fig. 2 shows the apparatus adapted for dyeing cops and the hollow piston in communication with a vessel from which the air is withdrawn by means of a pump. In Fig. 3 a receptacle containing hot gases under pressure or vapor is provided instead of said vessel in Fig. 2. In Fig. at the vacuum vessel arrangedas hollow piston is alternately in communication with a vessel from which the air is withdrawn by means of a pump and with a receptacle containing hot gases under pressure or vapor.

As shown in the drawings, the material 1 in the dye-vat 14 is arranged upon the warproller 2, the inner space of which communicates in a well-known manner withthe dyeing-bath reservoir 6 by means of conduits 3 4, valve 5, and pipe 17. At the interior of the cylindrical warp-roller 2 the hollow piston 7 is arranged, being perforated like the warproller 2. The hollow space of the piston 7 communicates with the hollow rod 8, leading into the flexible conduit 9, which may be connected, by means of a stop-cock 30 and pipe 11, to a pump 12, Fig. 1, or by means of a stop-cock 16 to a vessel 15, Fig. 2. Said vessel 15 is connected to the air-pump 32 by means of a pipe 31. In the construction shown in Fig. 13 the hollow rod8 isconnected to a receptacle 20, containing hot gases under pressure or vapor, by means of a pipe 18 and cock 19. In the form of construction shown in Fig. 4 the hollow rod 8 communicates with the vessel 15 and receptacle 20 by means of the stop-cocks 16 19 and pipe 18, the vessel 15 being connected to the air-pump 32 by conduit 31 and the receptacle 20 containing hot gases under pressure or vapor.

As usual, unions or connections 21 22 23 2A for steam, vacuum, compressed air, and water are arranged upon a pipe 25 and the necessary conduits 26 27 11 and stop-cocks or valves 28 1O 29 30.

The operation of the apparatus is as follows: When the textile fibers have been brought into the dye-vat 1 1 and the dyeingbath reservoir 6 has been filled with a solution of coloring-matter, the valve 5 is opened and stop-cock 10 and three-way cock 28 so adjusted that the connection between the pipes l 25 and 26 is effected and that between 25 and 27 interrupted. Then by the alternate connection of pipe 25 with the vacuum or compressed air conduits 22 23 the solution of coloring-matter contained in the reservoir 6 is forced from within outward by way of pipe 17, valve 5, conduits 3 at or the warproller 2 and through the material on the latter or in the vat 14 or drawn back in the opposite direction from without inward. When by means of alternate pressing and sucking this so-called preliminary dyeing is finished, valve 5 and three-way cock 28 are closed, stopcock 10 opened, and the rotary pump 12 is started,sometimes in one and sometimes in the other direction, so that the bath (with valve 29 in Fig. 1 and Fig. 3 opened and valve 30 in Fig. 1 and Fig. 3 closed) contained in the vat 14 is sometimes drawn by way of 2 3 4t 10 11 12 11 29 11 from without inward and sometimes forced in the opposite direction from within outward, thus forcing out the air contained in the material as well as possible. So far the operation is old and well known. After such operation is finished the material is by steps subjected to the action of vacuum or hot gases or vapor. For this purpose the piston 7 is conducted to and fro in the hollow space of the warp-roller 2. T hereby the hollow piston-rod 8 may move in the stuffing-box 13, Fig. 1 and Fig. 3. In the arrangement shown in Fig. 1 the material is only treated with vacuum, the rotary pump 12 then working as air-pump, stop-cock 29 being closed and stop-cocks 10 3O opened. Thereby the vacuum will only be able to act at that part of the material where piston 7 is, and at this part such action will be an effective and complete one. Naturally during the operation above described the piston 7 is removed from the warp-beam 2. In the devices shown in Figs. 1 and 8 the piston is moved to the utmost right corner and fully removed from those shown in Figs. 2 and 4:, such removal being brought about-by any mechanical means.

In the construction shown in Fig. 2, especially adapted for treating cops, loose material, and the like, the hollow piston 7 moves up and down the cylinder 2, to which the copcarriers are fastened, the rotary pump 12 being at rest. The stop-cock 16 is opened and the hollow piston 7 connected to the vessel 15 by means of the hollow rod 8 and the flexible conduit 9, the air having, as stated above, been previously withdrawn from the vessel 15 by means of the pump 32. In consequence thereof the material arranged on the cop-carriers also is acted upon by the vacuum in the vessel 15.

The apparatus represented in Fig. 3 differs from that shown in Fig. 2 by a receptacle 20, containing hot gases or vapor, being arranged in place of the vacuum vessel 15. When the material is to be treated with these gases or vapor, stop-cock 19 is opened, setting up communication between the vessel 20 and the hollow piston 7 by way of pipe 18, flexible pipe 9, and piston-rod 8, the cook 30 naturally being closed thereby. If desired to also treat the material with vacuum, the pump 12 may be used for such purpose, cocks 29 and 19 being closed and cooks 10 3O opened, so that the pump is connected to the hollow piston 7 by way of 11, 80, and 9.

In the device shown in Fig. 4 both the vessel 15, from which the air may be withdrawn by means of the air-pump 32, and the receptacle 20, containing hot gases or vapor, are applied for treatment of the material. When the latter is to be subjected to sucking action, cock 16 is opened, cook 19 being closed. However, when the material is to be subjected to a forcing action the position of the cooks is reversed, cook 19 being opened and cook 16 closed.

As has been pointed out above and as will be obvious, the piston-like arrangement referred to, causing vacuum or hot gases or vapor to act upon the material, discharges all the air contained in the material, not only attaining a complete discharge, permitting of a most easy control of the withdrawal of the air, but also of the use of the piston 7 for partial treatment by means of hot gases or vapor.

Having now fully described my invention, I declare that what I claim is- 1. In an apparatus for dyeing, bleaching, or otherwise treating materials, the combination of a dye-vat for the reception of the material to be treated, a perforated cylindrical roller mounted in said dye-vat, a perforated hollow piston in said roller adapted to be moved to and fro, and means for exhausting the air from said piston, substantially as and for the purpose set forth.

2. In an apparatus for dyeing, bleaching or otherwise treating materials, the combination of a dye-vat for the reception of the material to be treated, a perforated cylindrical roller mounted in said dye-vat, a hollow perforated piston in said roller adapted to be moved to and fro, a vessel, means for connecting said. hollow piston with said vessel, and means for exhausting the air from said vessel, substantially as and for the purpose set forth.

3. In an apparatus for dyeing, bleaching,

or otherwise treating materials, the combination of a dye-vat for the reception of the material to be treated, a perforated cylindrical roller mounted in said dye-vat, a perforated hollow piston in said roller, the perforations of said piston being adapted to register with the perforations in said roller, said piston beingadapted to be reoiprocated, and means for connecting said piston with means for supplying hot gases or vapor, substantially as and for the purpose set forth. v

4:. In an apparatus for dyeing, bleaching, or otherwise treating materials, the combination of a vat for the reception of the material to' be treated, a perforated cylindrical roller mounted in said vat, a hollow piston adapted to be reciprooated within said roller, and having perforations adapted to register with the perforations of said roller, a vessel, means for exhausting the air from said vessel, means for supplying hot gases or Vapor and means for connecting said piston alternately with OTTO VENTER.

Witnesses:

MORRIS LIPMAN, FREDERICK J. SIETZMAN. 

